Ok, thanks for your help, you have inspired me to Google your suggestion. And whatd'ya know:
http://thornahawk.unitedti.org/equationeditor/equationeditor.php
That editor uses this:
http://www.codecogs.com/eq.latex?your_latex_expression
e.g...
Doesn't PHP have image creating/editing capabilities? Hence CAPTCHAs and the like. But I suppose it would be clunky to port Tex to something like PHP.
I'm assuming that by VPS you mean Virtual Private Server?
Do you have to pay for that or something?
Is there any way to use Tex on my website?
I'd prefer the very nice Tex they use on Wikipedia as opposed to the older versions which don't look as nice.